J Clin Monit Comput - Single-channel amplitude integrated EEG recording for the identification of epileptic seizures by nonexpert physicians in the adult acute care setting.

Tópicos

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Resumo

JECTIVE: Although several studies have shown the potential of amplitude integrated electroencephalography (aEEG) in detecting neonatal seizures, no publications have evaluated the diagnostic use of aEEG for the detection of seizures in adult patients.METHODS: In this prospective blinded observational study, bifrontal single-channel electroencephalography (EEG) recordings were performed with a portable EEG monitor (CSM M3 ICU, Danmeter-Goalwick Holdings Limited, Odense, Denmark) during the out-of-hospital care of emergency cases. Four intensive care unit (ICU) physicians received training in the interpretation of aEEG recordings. After the training they evaluated the stored aEEG traces for the presence of epileptic seizure activity during the recording time. The physicians were blinded to the clinical data of the patients. The results obtained were compared with the clinical diagnosis and the evaluation of the raw EEG signal. The level of interrater agreement was quantified using Fleiss' .RESULTS: The aEEG traces from 10 patients with generalized epileptic seizures and 46 patients without seizures were analysed. Overall, the nonexpert ICU physicians failed to identify recordings obtained from patients with seizures reliably, when compared with clinical diagnosis and the single-channel EEG results (mean sensitivity 40%, range 40-60%; mean specificity 89%, range 87-93%). Agreement between observers was high for the cases with seizures ( ?=?0.80 ? 0.13). Patients who suffered status epilepticus during the recordings were difficult to identify by most raters.CONCLUSION: Recording of aEEG without access to the raw EEG data is not a reliable diagnostic tool for the identification of epileptic seizures in the hands of nonexpert ICU physicians.

Resumo Limpo

jectiv although sever studi shown potenti amplitud integr electroencephalographi aeeg detect neonat seizur public evalu diagnost use aeeg detect seizur adult patientsmethod prospect blind observ studi bifront singlechannel electroencephalographi eeg record perform portabl eeg monitor csm m icu danmetergoalwick hold limit odens denmark outofhospit care emerg case four intens care unit icu physician receiv train interpret aeeg record train evalu store aeeg trace presenc epilept seizur activ record time physician blind clinic data patient result obtain compar clinic diagnosi evalu raw eeg signal level interrat agreement quantifi use fleiss result aeeg trace patient general epilept seizur patient without seizur analys overal nonexpert icu physician fail identifi record obtain patient seizur reliabl compar clinic diagnosi singlechannel eeg result mean sensit rang mean specif rang agreement observ high case seizur patient suffer status epilepticus record difficult identifi ratersconclus record aeeg without access raw eeg data reliabl diagnost tool identif epilept seizur hand nonexpert icu physician

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